[jira] [Updated] (SSHD-850) Add capability to retry a failed private key decryption when client is decrypting private key file(s)

["Goldstein Lyor (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SSHD-850?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Goldstein Lyor updated SSHD-850:
--------------------------------
    Summary: Add capability to retry a failed private key decryption when client is decrypting private key file(s)  (was: Add capability to interact with the user when client is decrypting private key file(s))

> Add capability to retry a failed private key decryption when client is decrypting private key file(s)
> -----------------------------------------------------------------------------------------------------
>
>                 Key: SSHD-850
>                 URL: https://issues.apache.org/jira/browse/SSHD-850
>             Project: MINA SSHD
>          Issue Type: New Feature
>    Affects Versions: 2.0.0, 2.1.0
>            Reporter: Thomas Wolf
>            Priority: Minor
>
> In openssh, the ssh config entry NumberOfPasswordPrompts controls the number of times the ssh client keeps asking for a password if the one entered was invalid in two cases:
>  # keyboard-interactive authentication, and
>  # asking for passwords for encrypted private keys in identity files in pubkey authentication (see [openssh sources; sshconnect2.c|https://github.com/openssh/openssh-portable/blob/1a4a9cf/sshconnect2.c#L1380]).
> sshd-core only has support for (1) through setting the property {{ClientAuthenticationManager.PASSWORD_PROMPTS}} in the session's properties.
> There doesn't seem to be any support for FilePasswordProvider to make it respect this value.
> {{AbstractPEMResourceKeyPairParser.extractkeyPairs()}} and also {{BouncyCastleKeyPairResourceParser.loadKeyPair()}} call {{FilePasswordProvider.getPassword()}} exactly once.
> So how can I write a ssh client using sshd that asks the user NumberOfPasswordPrompts times? Either I'm missing something, or there is some support for this missing in sshd.



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